restore MBR to use GRUB after OS rebuild
I have an old Dell XPS R350 PC that used to dual boot Win98 and FC3. After updating virus definitions on the Win side, it will no longer boot Windows. I generally like linux better so it is not great loss. However, there are a few things I'd like to be able to on the Win side and an consequently considering throwing XP on the Windows partition. The problem is that I can't find a clear route to restoring the GRUB setup.
When I install Win XP, I fully expect it will overwrite the existing MBR, thus preventing me from booting my Linux side.
How do I restore the MBR so that GRUB will do its job after the Win install is done?
'Searched the tutorials and did a few searches on MBR and GRUB and such to no avail. If I've missed an obvious answer to this, sorry in advance.